diff options
Diffstat (limited to 'PhysX_3.4/Source/PhysXCooking/src/convex/QuickHullConvexHullLib.h')
| -rw-r--r-- | PhysX_3.4/Source/PhysXCooking/src/convex/QuickHullConvexHullLib.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/PhysX_3.4/Source/PhysXCooking/src/convex/QuickHullConvexHullLib.h b/PhysX_3.4/Source/PhysXCooking/src/convex/QuickHullConvexHullLib.h new file mode 100644 index 00000000..ad077654 --- /dev/null +++ b/PhysX_3.4/Source/PhysXCooking/src/convex/QuickHullConvexHullLib.h @@ -0,0 +1,97 @@ +// This code contains NVIDIA Confidential Information and is disclosed to you +// under a form of NVIDIA software license agreement provided separately to you. +// +// Notice +// NVIDIA Corporation and its licensors retain all intellectual property and +// proprietary rights in and to this software and related documentation and +// any modifications thereto. Any use, reproduction, disclosure, or +// distribution of this software and related documentation without an express +// license agreement from NVIDIA Corporation is strictly prohibited. +// +// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES +// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO +// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, +// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. +// +// Information and code furnished is believed to be accurate and reliable. +// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such +// information or for any infringement of patents or other rights of third parties that may +// result from its use. No license is granted by implication or otherwise under any patent +// or patent rights of NVIDIA Corporation. Details are subject to change without notice. +// This code supersedes and replaces all information previously supplied. +// NVIDIA Corporation products are not authorized for use as critical +// components in life support devices or systems without express written approval of +// NVIDIA Corporation. +// +// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved. +// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. +// Copyright (c) 2001-2004 NovodeX AG. All rights reserved. + +#ifndef PX_QUICKHULL_CONVEXHULLLIB_H +#define PX_QUICKHULL_CONVEXHULLLIB_H + +#include "ConvexHullLib.h" +#include "Ps.h" +#include "PsArray.h" +#include "PsUserAllocated.h" + +namespace local +{ + class QuickHull; + struct QuickHullVertex; +} + +namespace physx +{ + class ConvexHull; + + ////////////////////////////////////////////////////////////////////////// + // Quickhull lib constructs the hull from given input points. The resulting hull + // will only contain a subset of the input points. The algorithm does incrementally + // adds most furthest vertices to the starting simplex. The produced hulls are build with high precision + // and produce more stable and correct results, than the legacy algorithm. + class QuickHullConvexHullLib: public ConvexHullLib, public Ps::UserAllocated + { + PX_NOCOPY(QuickHullConvexHullLib) + public: + + // functions + QuickHullConvexHullLib(const PxConvexMeshDesc& desc, const PxCookingParams& params); + + ~QuickHullConvexHullLib(); + + // computes the convex hull from provided points + virtual PxConvexMeshCookingResult::Enum createConvexHull(); + + // fills the convexmeshdesc with computed hull data + virtual void fillConvexMeshDesc(PxConvexMeshDesc& desc); + + protected: + // if vertex limit reached we need to expand the hull using the OBB slicing + PxConvexMeshCookingResult::Enum expandHullOBB(); + + // if vertex limit reached we need to expand the hull using the plane shifting + PxConvexMeshCookingResult::Enum expandHull(); + + // checks for collinearity and co planarity + // returns true if the simplex was ok, we can reuse the computed tolerances and min/max values + bool cleanupForSimplex(PxVec3* vertices, PxU32 vertexCount, local::QuickHullVertex* minimumVertex, + local::QuickHullVertex* maximumVertex, float& tolerance, float& planeTolerance); + + // fill the result desc from quick hull convex + void fillConvexMeshDescFromQuickHull(PxConvexMeshDesc& desc); + + // fill the result desc from cropped hull convex + void fillConvexMeshDescFromCroppedHull(PxConvexMeshDesc& desc); + + private: + local::QuickHull* mQuickHull; // the internal quick hull representation + ConvexHull* mCropedConvexHull; //the hull cropped from OBB, used for vertex limit path + + PxVec3* mVertsOut; // vertices for output + PxU32* mIndicesOut; // inidices for output + PxHullPolygon* mPolygonsOut; // polygons for output + }; +} + +#endif |